<?php

/**
 * LoginForm class.
 * LoginForm is the data structure for keeping
 * user login form data. It is used by the 'login' action of 'SiteController'.
 */
class LoginForm extends CFormModel
{
	public $username;
	public $password;
	public $rememberMe;
    public $verifyCode;
	private $_identity;

	/**
	 * Declares the validation rules.
	 * The rules state that username and password are required,
	 * and password needs to be authenticated.
	 */
	public function rules(){
		return array(
			// username and password are required
//			array('username, password', 'required'),
            array('username','required','message'=>'登录帐号不能为空'),
            array('password','required','message'=>'密码不能为空'),
            array('verifyCode','required','message'=>'验证码不能为空'),
            array('verifyCode','captcha', 'on'=>'login','allowEmpty'=>!Yii::app()->admin->isGuest),
			// rememberMe needs to be a boolean
			array('rememberMe', 'boolean'),
			// password needs to be authenticated
			array('password', 'authenticate'),
		);
	}

	/**
	 * Declares attribute labels.
	 */
	public function attributeLabels()
	{
		return array(
			'rememberMe'=>'下次记住我',
            'verifyCode' =>'验证码'
		);
	}

	/**
	 * Authenticates the password.
	 * This is the 'authenticate' validator as declared in rules().
	 */
	public function authenticate($attribute,$params)
	{
		if(!$this->hasErrors())
		{
			$this->_identity=new UserIdentity($this->username,$this->password);
			if(!$this->_identity->authenticate())
				$this->addError('password','帐号或密码错误.');
		}
	}

    public function validateVerifyCode($verifyCode){
        if(strtolower($this->verifyCode) === strtolower($verifyCode)){
            return true;
        }else{
            $this->addError('verifyCode','验证码错误.');
        }
	}
    
    
	/**
	 * Logs in the user using the given username and password in the model.
	 * @return boolean whether login is successful
	 */
	public function login(){
		if($this->_identity===null){
			$this->_identity=new UserIdentity($this->username,$this->password);
			$this->_identity->authenticate();
		}
		if($this->_identity->errorCode===UserIdentity::ERROR_NONE){
			$duration=$this->rememberMe ? 3600*24*30 : 0; // 30 days
			Yii::app()->user->login($this->_identity,$duration);
			return true;
		}else{
            return false;
        }	
	}
    
    /**
	 * Logs in the user using the given username and password in the model.
	 * @return boolean whether login is successful
	 */
	public function adminLogin(){
		if($this->_identity===null){
			$this->_identity=new AdminIdentity($this->username,$this->password);
			$this->_identity->authenticate();
		}
		if($this->_identity->errorCode===AdminIdentity::ERROR_NONE){
			$duration=$this->rememberMe ? 3600*24*30 : 0; // 30 days
			Yii::app()->admin->login($this->_identity,$duration);
			return true;
		}else{
            return false;
        }	
	}
}
